Foods recalled: While no specific foods were recalled, those traveling to Germany were told to avoid eating raw lettuce, tomatoes, sprouts, and cucumbers.

Outcome: In Europe, more than 2,200 people were sickened and 22 were killed. Four Americans who were traveling in Europe were also sickened.

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December 2011: Cilantro

Food-Borne Illness: Salmonella

Foods recalled: California produce distributor Pacific International Marketing recalled more than 6,000 cartons of cilantro due to a possible salmonella contamination. While the source of the contamination is unknown, the cilantro was distributed to places in California, Arizona, Massachusetts, New Jersey, Indiana, South Carolina, and Missouri.

Outcome: No illnesses have been reported so far.

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October 2011: Pine Nuts

Food-borne illness: Salmonella

Foods recalled: Wegmans Food Markets Inc. recalled any Turkish pine nuts that were sold in New York, Pennsylvania, New Jersey, Virginia, and Maryland between the dates of July 1 and October 18, according to Reuters.

Outcome: 42 people in six states were sickened, but no deaths have been reported so far. New York has experience the greatest number of cases so far, with 26 people falling ill after consuming the affected nuts.

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October 2011: Romaine and Iceberg Lettuce

Food-borne illness: Listeria

Foods recalled: True Leaf Farms of Salinas in California issued a voluntary romaine lettuce recall of nearly 2,500 cartons, about 90 cartons of which were sold in retail stores and the rest were sold to institutions such as restaurants and cafeterias. Also, Pittsburgh's Giant Eagle Inc. recalled its eight-ounce packages of shredded iceberg lettuce, which was produced by River Ranch Fresh Foods.

Outcome: No illnesses were reported.

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September 2011: Cantaloupe

Food-borne illness: Listeria

Foods recalled: Cantaloupes from Jensen Farms in Holly, Colo.

Outcome: The deadliest listeria outbreak in more than 25 years, 23 died from listeriosis and another 116 people from the states Alabama, Arkansas, California, Colorado, Idaho, Illinois, Indiana, Iowa, Kansas, Louisiana, Maryland, Missouri, Montana, Nebraska, New Mexico, New York, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Virginia, West Virginia, Wisconsin, and Wyoming were sickened.

Outcome: One death and 76 illnesses were reported nationwide due to this food recall. This particular recall was disturbing because the particular strain of Salmonella found is known to be drug-resistant.